Modeling the design of the scaler for thermochemical treatment of beet ships before extracting sucharose

The extraction of sucrose is a key process in sugar beet production that determines its efficiency. This process is significantly accelerated by a complex thermal, electrical and chemical effect on beet tissue in the process of its preparation and is carried out in scalders of various designs. The design parameters of the scalder can be estimated using mathematical modeling methods. When developing the model, a finite element approach was used by representing complex bodies in the form of a large number of separate elements of the same type and the method of particle dynamics. In the simulation, a number of coefficients were introduced related to splitting the chips into separate spherical elements: mЭ, cС, dЭС, cИС. Reference and experimental data were used to calculate them. The mathematical model is implemented in the form of a system of differential and algebraic equations, for the processing of which a computer program in the Object Pascal language has been developed. The developed model makes it possible to vary a large number of design and technological parameters of the scalder and mechanical and geometric parameters of beet chips, and to determine indicators characterizing the efficiency of thermochemical processing of chips. The angle of inclination of the nozzle in the vertical plane, length and diameter of the nozzle were chosen as design parameters. The efficiency of the scalder design was evaluated by the mass of beet chips accumulated on the nozzle and the contact time of the beet chips with the inner surfaces of the scalder. In the course of a computer experiment, it was found that an increase in the angle of inclination of the nozzles at different lengths and diameters significantly reduces the mass of accumulated chips and the time of contact of the chips with the surface of the scalder. The resulting model is intended for the design of prototypes of the scalder.